We Specialize In Everything Under The Bag To The Tool
Engineered Materials for Composite & Aerospace
We Specialize In Everything Under The Bag To The Tool
Engineered Materials for Composite & Aerospace
Science. Applied to Life.™
From structural adhesives and protective tapes to advanced sealants and composite materials, 3MTM delivers science-backed solutions across every phase of aircraft manufacturing, assembly, and maintenance.
Browse by Application
From structural assembly to MRO, 3M™ engineers products that address the full aircraft lifecycle. Coast-Line stocks the materials your program needs, ready to ship.
Structural Assembly
3M™ structural adhesives and film adhesives are proven across metallic and composite airframe structures. Whether you’re bonding aluminum skins, co-curing composite stiffeners, or closing out honeycomb panels, 3M™ delivers the bond strength and process reliability aerospace programs demand.
Advanced Ceramics
When heat is the enemy, Nextel delivers. 3M™ Nextel™ Ceramic Fibers and Textiles are continuous-filament ceramic oxide materials engineered to meet the most demanding thermal, mechanical, and electrical requirements in aerospace — including FAA criteria for aircraft firewalls and NASA standards for spacecraft heat shielding. Lightweight and flexible, yet capable of withstanding continuous temperatures up to 2,372°F (1,300°C), Nextel is the material of choice when conventional alternatives simply won’t survive.
| Grade | Fiber Chemistry | Primary Use | Type |
|---|---|---|---|
| Nextel™ 312 | Aluminoborosilicate | Firewall blankets, wiring insulation, flame barriers, heat shields | Insulation |
| Nextel™ 440 | Aluminoborosilicate | High-temp seals, thermal curtains, insulation blankets | Insulation |
| Nextel™ 610 | Alumina | Structural CMC reinforcement, load-bearing composites | Structural |
| Nextel™ 720 | Aluminosilica | High-creep-resistance CMCs, next-gen aero engine components | Structural |
Composite Parts
3M™ solutions for composite part manufacturing include surface preparation products, adhesion promoters, and protective films that safeguard finished surfaces through the assembly process. Designed to meet the tight tolerances and cleanliness standards of aerospace composite production.
Engine & Nacelle
The engine environment demands materials that perform under extreme thermal and mechanical stress. 3M™ one-part and two-part structural adhesives offer high-temperature bond strength, while polysulfide and specialty sealants handle nacelle and thrust reverser assemblies where durability is non-negotiable.
EMI, EMS & Lightning Strike Protection
Any interference can disrupt sensitive avionics, radar, and mission-critical electronics — potentially causing malfunctions or failures in flight. With decades of EMI/RFI management experience, 3M™’s material science delivers reliable, high-performance solutions engineered for the unique demands of aerospace and defense environments. Coast-Line stocks the most frequently specified 3M™ EMI materials and can source across the full range.
MRO & Maintenance
Keep aircraft airworthy and surfaces looking their best with a complete 3M™ MRO offering. From abrasive systems for paint stripping and surface prep to repair adhesives, corrosion management solutions, and polysulfide sealant removal products — 3M™ supports the full heavy-check maintenance cycle.
MRO & Maintenance
A sampling of the 3M™ aerospace products Coast-Line regularly stocks and supplies. Don’t see what you need? Contact us — we can source across the full 3M™ aerospace catalog.
Two-part epoxy and acrylic adhesives that cure at room temperature or with mild heat. Engineered for high-strength bonding of metals and composites in aerospace assembly and repair applications.
Supported and unsupported film adhesives for core splice, co-curing and secondary bonding of composite and metal structures. Available in a range of areal weights and cure temperatures to match your process.
Fuel-resistant, flexible polysulfide sealants for fuel tank faying surfaces, fillet sealing, and pressure sealing applications. Available in multiple cure rates and packaging configurations.
Discs, belts, and sheets engineered for composite and metal surface preparation, paint stripping, and finishing operations. Consistent cut rates and long life reduce downtime in production and MRO environments.
A broad range of masking, splicing, surface protection, and high-temperature process tapes designed for aerospace manufacturing environments. Includes polyimide, PTFE, and aluminum foil constructions.
Surface pre-treatment solutions that improve adhesive bond performance on metals, composites, and plastics. Includes the widely specified AP86A adhesion promoter and corrosion-inhibiting bond primers for aluminum and titanium.
MRO & Maintenance
Coast-Line combines 3M™’s world-class aerospace materials with over 60 years of distribution expertise and the compliance credentials your supply chain requires.
Our AS9120 certification means full traceability, documented quality records, and a supply chain that meets the requirements of aerospace prime contractors and their auditors.
We maintain inventory on the 3M™ aerospace products our customers rely on most, minimizing lead times and keeping your production schedule on track.
Our team understands aerospace specifications. We can help match the right 3M™ product to your customer spec, BMS, or process requirement — including material certifications and C of C documentation.
Submit a quote request or contact our team directly. We’ll get back to you with availability, pricing, and documentation — fast.